Reanalysed JLA Type Ia Supernovae Data with 2M++ Density Field

These are the data products to supplement Rahman et al. 2021 here https://arxiv.org/abs/2108.12497 The covariance file statssys_JLA_A2_no_colour_off_diag.gz contains the new peculiar velocity corrections and removes the off-digonal colour correlations to be consistent with the selection effects methodlogy applied in Rahman et al. 2021 If you want the color covariances to be included because you want to ignore the selection effects analysis in the paper or apply your own, this version of the covariance matrix is called statssys_JLA_A2.gz nb: for each 3 x 3 sub matrix, the order of the covariance matrix is color, x1, mb on the diagonal.

本数据集为Rahman等人2021年研究（https://arxiv.org/abs/2108.12497）的配套补充数据产品。协方差文件statssys_JLA_A2_no_colour_off_diag.gz包含了新的本动速度（peculiar velocity）修正项，并移除了非对角颜色关联项，以与Rahman等人2021年研究中采用的选择效应（selection effects）方法保持一致。若您希望保留颜色协方差，例如忽略论文中的选择效应分析，或采用自定义的分析方案，则可使用该版本的协方差矩阵（covariance matrix）文件statssys_JLA_A2.gz。注意：对于每个3×3子矩阵，协方差矩阵对角线上的元素顺序依次为颜色（color）、x1、mb。